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yaml
---
r: 234890
b: refs/heads/master
c: d1b1942
h: refs/heads/master
v: v3
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Yinghai Lu authored and Tejun Heo committed Feb 24, 2011
1 parent 9224237 commit 3afcc0b
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Showing 6 changed files with 21 additions and 21 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 8bc1f91e1f0e977fb95b11d8fa686f5091888110
refs/heads/master: d1b19426b04787e48f2689923e28d37b488969b0
6 changes: 3 additions & 3 deletions trunk/arch/x86/include/asm/init.h
Original file line number Diff line number Diff line change
Expand Up @@ -11,8 +11,8 @@ kernel_physical_mapping_init(unsigned long start,
unsigned long page_size_mask);


extern unsigned long __initdata e820_table_start;
extern unsigned long __meminitdata e820_table_end;
extern unsigned long __meminitdata e820_table_top;
extern unsigned long __initdata pgt_buf_start;
extern unsigned long __meminitdata pgt_buf_end;
extern unsigned long __meminitdata pgt_buf_top;

#endif /* _ASM_X86_INIT_32_H */
20 changes: 10 additions & 10 deletions trunk/arch/x86/mm/init.c
Original file line number Diff line number Diff line change
Expand Up @@ -18,9 +18,9 @@

DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);

unsigned long __initdata e820_table_start;
unsigned long __meminitdata e820_table_end;
unsigned long __meminitdata e820_table_top;
unsigned long __initdata pgt_buf_start;
unsigned long __meminitdata pgt_buf_end;
unsigned long __meminitdata pgt_buf_top;

int after_bootmem;

Expand Down Expand Up @@ -73,12 +73,12 @@ static void __init find_early_table_space(unsigned long end, int use_pse,
if (base == MEMBLOCK_ERROR)
panic("Cannot find space for the kernel page tables");

e820_table_start = base >> PAGE_SHIFT;
e820_table_end = e820_table_start;
e820_table_top = e820_table_start + (tables >> PAGE_SHIFT);
pgt_buf_start = base >> PAGE_SHIFT;
pgt_buf_end = pgt_buf_start;
pgt_buf_top = pgt_buf_start + (tables >> PAGE_SHIFT);

printk(KERN_DEBUG "kernel direct mapping tables up to %lx @ %lx-%lx\n",
end, e820_table_start << PAGE_SHIFT, e820_table_top << PAGE_SHIFT);
end, pgt_buf_start << PAGE_SHIFT, pgt_buf_top << PAGE_SHIFT);
}

struct map_range {
Expand Down Expand Up @@ -272,9 +272,9 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,

__flush_tlb_all();

if (!after_bootmem && e820_table_end > e820_table_start)
memblock_x86_reserve_range(e820_table_start << PAGE_SHIFT,
e820_table_end << PAGE_SHIFT, "PGTABLE");
if (!after_bootmem && pgt_buf_end > pgt_buf_start)
memblock_x86_reserve_range(pgt_buf_start << PAGE_SHIFT,
pgt_buf_end << PAGE_SHIFT, "PGTABLE");

if (!after_bootmem)
early_memtest(start, end);
Expand Down
8 changes: 4 additions & 4 deletions trunk/arch/x86/mm/init_32.c
Original file line number Diff line number Diff line change
Expand Up @@ -62,10 +62,10 @@ bool __read_mostly __vmalloc_start_set = false;

static __init void *alloc_low_page(void)
{
unsigned long pfn = e820_table_end++;
unsigned long pfn = pgt_buf_end++;
void *adr;

if (pfn >= e820_table_top)
if (pfn >= pgt_buf_top)
panic("alloc_low_page: ran out of memory");

adr = __va(pfn * PAGE_SIZE);
Expand Down Expand Up @@ -163,8 +163,8 @@ static pte_t *__init page_table_kmap_check(pte_t *pte, pmd_t *pmd,
if (pmd_idx_kmap_begin != pmd_idx_kmap_end
&& (vaddr >> PMD_SHIFT) >= pmd_idx_kmap_begin
&& (vaddr >> PMD_SHIFT) <= pmd_idx_kmap_end
&& ((__pa(pte) >> PAGE_SHIFT) < e820_table_start
|| (__pa(pte) >> PAGE_SHIFT) >= e820_table_end)) {
&& ((__pa(pte) >> PAGE_SHIFT) < pgt_buf_start
|| (__pa(pte) >> PAGE_SHIFT) >= pgt_buf_end)) {
pte_t *newpte;
int i;

Expand Down
4 changes: 2 additions & 2 deletions trunk/arch/x86/mm/init_64.c
Original file line number Diff line number Diff line change
Expand Up @@ -314,7 +314,7 @@ void __init cleanup_highmap(void)

static __ref void *alloc_low_page(unsigned long *phys)
{
unsigned long pfn = e820_table_end++;
unsigned long pfn = pgt_buf_end++;
void *adr;

if (after_bootmem) {
Expand All @@ -324,7 +324,7 @@ static __ref void *alloc_low_page(unsigned long *phys)
return adr;
}

if (pfn >= e820_table_top)
if (pfn >= pgt_buf_top)
panic("alloc_low_page: ran out of memory");

adr = early_memremap(pfn * PAGE_SIZE, PAGE_SIZE);
Expand Down
2 changes: 1 addition & 1 deletion trunk/arch/x86/xen/mmu.c
Original file line number Diff line number Diff line change
Expand Up @@ -1443,7 +1443,7 @@ static __init pte_t mask_rw_pte(pte_t *ptep, pte_t pte)
* early_ioremap fixmap slot, make sure it is RO.
*/
if (!is_early_ioremap_ptep(ptep) &&
pfn >= e820_table_start && pfn < e820_table_end)
pfn >= pgt_buf_start && pfn < pgt_buf_end)
pte = pte_wrprotect(pte);

return pte;
Expand Down

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